4-Bromo-6-fluoro-2-(trifluoromethoxy)pyridine-3-acetonitrile
3-Bromo-2-fluoro-6-(trifluoromethoxy)pyridine-5-acetonitrile
5-Bromo-2-(difluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine
4-Bromo-6-(difluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine